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Physics-

General

Easy

Question

In the experiment to determine Young’s modulus of the material of a wire under tension used in the arrangement as shown. The percentage error in the measurement of length is ‘a’, in the measurement of the radius of the wire is ‘b’ and in the measurement of the change in length of the wire is ‘c’. Percentage error in the measurement of Young’s modulus for a given load is

$a - 2 b + c$
$a - 2 b - c$
$a + 2 b + c$
$a + 2 b$

The correct answer is: $a plus 2 b plus c$

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